Chem Comm ~ Periodic Table

The elements on the Periodic Table are arranged in order of increasing

• atomic mass

• atomic number

• first ionization energy

• selected oxidation state

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

Horizontal rows on the periodic table are called ___?

• groups

• periods

• rows

• families

Who invented the Periodic Table?

• Mendeleev

• Bohr

• Lewis

• Democritus

As you move left to right on a row or period what happens?

• Atomic number increases by 1

• Electrons decrease

• Number of shells decrease

• Nothing

Mendeleev's genius was his ability to

• predict elements that were not discovered yet

• organize elements by their mass

• had an element named after himself

• organize elements by properties

Rows on the periodic table are called ___________.

• Periods

• Sentences

• Fences

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Sodium (Na) is found in period 

• 3
• 2
• 4
• 1

Tags

NGSS.HS-PS1-1

Sodium (Na) is found in group 

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

What does the 6 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Tags

NGSS.HS-PS1-1